GALLATIN GATEWAY, Mont. — The dish goes by many names: cowboy caviar, Montana tendergroin, dusted nut, swinging beef, the original sack lunch. But it is perhaps best known as the Rocky Mountain oyster, a euphemistic nod to the mountain range dotted with the bulls from whom these “oysters’' originate.
Hanna Krueger can be reached at hanna.krueger@globe.com. Follow her @hannaskrueger.